ICD-10 I27.849
Billable / SpecificFontan related circulation, unspecified
About ICD-10-CM I27.849
ICD-10-CM code I27.849 represents Fontan related circulation, unspecified. This is a billable/specific code in the Circulatory System chapter (block I27). The 2026 edition of ICD-10-CM I27.849 became effective on October 1, 2025.
Medicare LCD Coverage for I27.849
Local Coverage Determinations (LCDs) from CMS MACs that list I27.849 as a covered diagnosis.
Showing top 10 of 194 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing I27.849.
5 Medicare
CPT Codes Commonly Billed with I27.849
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 93979 CMS LCD: Billing and Coding: Non-Invasive Abdominal / Visceral Vascular Studies CMS LCD
- 93975 CMS LCD: Billing and Coding: Non-Invasive Abdominal / Visceral Vascular Studies CMS LCD
- 93976 CMS LCD: Billing and Coding: Non-Invasive Abdominal / Visceral Vascular Studies CMS LCD
- 93978 CMS LCD: Billing and Coding: Non-Invasive Abdominal / Visceral Vascular Studies CMS LCD
- 93980 CMS LCD: Billing and Coding: Non-Invasive Abdominal / Visceral Vascular Studies CMS LCD
- 93981 CMS LCD: Billing and Coding: Non-Invasive Abdominal / Visceral Vascular Studies CMS LCD
- 93990 CMS LCD: Billing and Coding: Non-Invasive Peripheral Venous Vascular and Hemodialysis Access Studies CMS LCD
- 93985 CMS LCD: Billing and Coding: Non-Invasive Peripheral Venous Vascular and Hemodialysis Access Studies CMS LCD
- 93986 CMS LCD: Billing and Coding: Non-Invasive Peripheral Venous Vascular and Hemodialysis Access Studies CMS LCD
Codes Adjacent To I27.849
Other codes in section I26-I28 (Pulmonary heart disease and diseases of pulmonary circulation).
ICD-10 I27.849, Billing FAQ
Is ICD-10 code I27.849 billable? +
Yes, I27.849 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What CPT codes are commonly billed with I27.849? +
Procedures frequently paired with I27.849 include: 93979, 93975, 93976, 93978, 93980.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on August 31, 2026.
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